Height-adjustable leg supporting device

Abstract

The utility model relates to the technical field of leg supporting, in particular to a height-adjustable leg supporting device which comprises a base, a lifting structure is installed on the end face of the base and located on the rear side, the lifting structure comprises a supporting shell, and the bottom of an inner cavity of the supporting shell is rotationally connected with a lead screw through a connecting hole. A lifting block is connected to the lead screw through threads, a polished rod is arranged at the upper end of the lifting block, a driven bevel gear is installed on the outer wall of the polished rod, and by arranging the lifting structure, the problem that the height of a bracket of an existing leg supporting device cannot be adjusted according to the height of a patient sitting on a seat is solved; the height of the bracket can be adjusted according to the height of the seat on which a patient sits, so that the leg supporting effect of the patient is better; by arranging the automatic adjusting structure, the problem that the angle of the bracket cannot be adjusted according to the inclination angle of the legs of the patient due to the fact that the bracket is fixedly installed on the supporting device is solved, the bracket can be better attached to the legs of the patient, and the supporting comfort level is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of leg supports, in particular to a height-adjustable leg support device. Background Art

[0002] Orthopedics mainly studies the anatomy, physiology and pathology of the musculoskeletal system, and uses drugs, surgery and physical methods to maintain and develop the normal form and function of this system. In hospitals, orthopedics is an indispensable and important department. After a patient's leg is injured, the patient's leg will be supported to help the patient recover faster.

[0003] The existing leg support device cannot adjust the height of the bracket according to the height of the patient's sitting chair, resulting in poor supporting effect of the leg support device. Secondly, the bracket is fixedly installed on the support device, and the angle of the bracket cannot be adjusted according to the inclination angle of the patient's legs. The patient is not comfortable when supporting his legs. Therefore, a height-adjustable leg support device is needed to improve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a height-adjustable leg support device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A height-adjustable leg support device comprises a base, on the end surface of the base and at the rear side thereof a lifting structure is installed;

[0007] The lifting structure includes a supporting shell, a screw rod is rotatably connected to the bottom of the inner cavity of the supporting shell through a connecting hole, the screw rod is connected to the lifting block through a thread, a polished rod is arranged at the upper end of the lifting block, a driven bevel gear is installed on the outer wall of the polished rod, a rotating shaft is rotatably connected to the left side wall of the supporting shell through a connecting hole, a driving bevel gear is arranged at the rear end of the rotating shaft and located inside the supporting shell, a fixed shaft is installed on the left side wall of the supporting shell and located on one side of the rotating shaft, a shaft holder is arranged at the other end of the fixed shaft and corresponding to the rotating shaft, a handle is arranged at the front end of the rotating shaft, and an automatic adjustment structure is installed on the side wall of the lifting block;

[0008] The automatic adjustment structure includes a fixed cylinder, a mounting groove is opened at the back of the inner cavity of the fixed cylinder, the fixed cylinder is rotatably connected to the limit plate through the mounting groove, a connecting rod is installed on the front of the limit plate, the fixed cylinder is installed with a limiting ring through the mounting groove and located in front of the limit plate, the back of the inner cavity of the fixed cylinder is connected to a torsion spring through a connecting hole, a turntable is arranged at the front end of the connecting rod, a bracket is installed on the front of the turntable, and a cushion is installed on the inner wall of the bracket.

[0009] As a preferred solution of the utility model, the bottom of the support shell is connected to the end surface of the base, and the inner cavity end surface of the support shell is rotatably connected to the upper end of the polished rod through a connecting hole.

[0010] As a preferred solution of the utility model, the side wall of the lifting block is fixedly connected to the rear end of the fixing cylinder, and the back of the turntable is connected to the other end of the torsion spring through a connecting hole.

[0011] As a preferred solution of the utility model, the connecting rod is located inside the torsion spring, and the sum of the thicknesses of the limiting plate and the limiting ring is equal to the groove depth of the installation groove.

[0012] As a preferred solution of the utility model, running wheels are installed at the bottom of the base and at the corners, and the running wheels are lockable universal wheels.

[0013] As a preferred solution of the utility model, the lifting block and the inner cavity of the supporting shell are matched, and the inner wall of the fixing cylinder and the outer wall of the rotating disk are connected in a rotating manner.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. In the utility model, a lifting structure is provided in a height-adjustable leg support device, and the handle is rotated clockwise or counterclockwise, and the screw rod is rotated forward or reversely to drive the lifting block to move up or down under the transmission cooperation of the rotating shaft, the active bevel gear, the driven bevel gear and the light rod in sequence. The lifting structure solves the problem that the height of the bracket of the existing leg support device cannot be adjusted according to the height of the patient's sitting seat, and the height of the bracket can be adjusted according to the height of the patient's sitting seat, thereby providing a better leg support effect for the patient;

[0016] 2. In the utility model, an automatic adjustment structure is provided in a height-adjustable leg support device. When the bracket is subjected to force, it will drive the turntable to rotate in the fixed cylinder according to the inclination angle of the patient's legs. Due to the action of the torsion spring, the bracket can be tilted to the left or right. The automatic adjustment structure solves the problem that the bracket is fixedly installed on the support device and the angle of the bracket cannot be adjusted according to the inclination angle of the patient's legs, so that the bracket can fit the patient's legs more closely and the support comfort is stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of a three-dimensional cutaway structure of the utility model;

[0019] Figure 3It is a schematic diagram of the split structure of the automatic adjustment structure of the utility model.

[0020] In the figure: 1. base; 2. lifting structure; 201. supporting shell; 202. screw rod; 203. lifting block; 204. light rod; 205. driven bevel gear; 206. rotating shaft; 207. driving bevel gear; 208. fixed shaft; 209. shaft holder; 210. handle; 3. automatic adjustment structure; 301. fixing cylinder; 302. mounting groove; 303. limiting plate; 304. connecting rod; 305. limiting ring; 306. torsion spring; 307. turntable; 4. bracket; 5. cushion; 6. walking wheel. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings provide several embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0025] Example: See Figure 1-3 A height-adjustable leg support device is shown, comprising a base 1, on the end surface of the base 1 and at the rear side thereof a lifting structure 2 is installed;

[0026] The lifting structure 2 includes a supporting shell 201, a screw rod 202 is rotatably connected to the bottom of the inner cavity of the supporting shell 201 through a connecting hole, the screw rod 202 is connected to the lifting block 203 through a thread, a light rod 204 is arranged at the upper end of the lifting block 203, a driven bevel gear 205 is installed on the outer wall of the light rod 204, a rotating shaft 206 is rotatably connected to the left side wall of the supporting shell 201 through a connecting hole, a driving bevel gear 207 is arranged at the rear end of the rotating shaft 206 and located inside the supporting shell 201, a fixed shaft 208 is installed on the left side wall of the supporting shell 201 and located on one side of the rotating shaft 206, and a fixed shaft 208 is arranged at the other end corresponding to the rotating shaft 206 There is a shaft fixer 209, a handle 210 is provided at the front end of the rotating shaft 206, and an automatic adjustment structure 3 is installed on the side wall of the lifting block 203. The handle 210 is rotated clockwise or counterclockwise, and the screw rod 202 is driven to move the lifting block 203 up or down by the transmission cooperation of the rotating shaft 206, the active bevel gear 207, the driven bevel gear 205 and the light rod 204 in sequence. The lifting structure 2 solves the problem that the existing leg support device cannot adjust the height of the bracket 4 according to the height of the patient's sitting seat, and realizes the adjustment of the height of the bracket 4 according to the height of the patient's sitting seat, thereby providing a better leg support effect for the patient;

[0027] The automatic adjustment structure 3 includes a fixed cylinder 301, a mounting groove 302 is provided at the back of the inner cavity of the fixed cylinder 301, the fixed cylinder 301 is rotatably connected to the limit plate 303 through the mounting groove 302, a connecting rod 304 is installed on the front of the limit plate 303, a limit ring 305 is installed on the fixed cylinder 301 through the mounting groove 302 and located in front of the limit plate 303, a torsion spring 306 is connected to the back of the inner cavity of the fixed cylinder 301 through a connecting hole, and a rotating disk 307 is provided at the front end of the connecting rod 304. A bracket 4 is installed on the surface, and a cushion 5 is installed on the inner wall of the bracket 4. When subjected to force, the bracket 4 will drive the turntable 307 to rotate in the fixed cylinder 301 according to the inclination angle of the patient's legs. Due to the action of the torsion spring 306, the bracket 4 can be tilted to the left or right. By setting the automatic adjustment structure 3, the problem that the bracket 4 is fixedly installed on the supporting device and the angle of the bracket 4 cannot be adjusted according to the inclination angle of the patient's legs is solved, so that the bracket 4 fits the patient's legs more closely and the support comfort is stronger.

[0028] In this embodiment, refer to Figure 1 and 2As shown, the bottom of the support shell 201 is connected to the end surface of the base 1, and the inner cavity end surface of the support shell 201 is rotatably connected to the upper end of the light rod 204 through a connecting hole; the side wall of the lifting block 203 is fixedly connected to the rear end of the fixing cylinder 301, and the back of the rotating disk 307 is connected to the other end of the torsion spring 306 through a connecting hole; the connecting rod 304 is located inside the torsion spring 306, and the sum of the thickness of the limiting plate 303 and the limiting ring 305 is equal to the groove depth of the mounting groove 302; by the sum of the thickness of the limiting plate 303 and the limiting ring 305 being equal to the groove depth of the mounting groove 302, the limiting ring 305 can limit the position of the limiting plate 303 to prevent the limiting plate 303 from being separated from the mounting groove 302, thereby ensuring the normal operation of the automatic adjustment structure 3;

[0029] In this embodiment, refer to Figure 1 and 2 As shown, a walking wheel 6 is installed at the bottom of the base 1 and at the corner, and the walking wheel 6 is a lockable universal wheel; the lifting block 203 is adapted to the inner cavity of the supporting shell 201, and the inner wall of the fixing cylinder 301 is connected to the outer wall of the rotating disk 307 in a rotating manner; because the walking wheel 6 is a lockable universal wheel, the walking wheel 6 can carry the leg support device to walk in any direction, and can also lock and fix the leg support device in a certain area;

[0030] Working principle: When the height-adjustable leg support device is in use, the user turns the handle 210 clockwise or counterclockwise, the handle 210 drives the rotating shaft 206 to rotate, and the rotating shaft 206 drives the active bevel gear 207 to rotate. Because the active bevel gear 207 and the driven bevel gear 205 are meshingly connected, the active bevel gear 207 drives the driven bevel gear 205 to rotate, and the driven bevel gear 205 drives the light rod 204 to rotate forward or reversely, and the light rod 204 drives the screw rod 202 to rotate forward or reversely, and the screw rod 202 drives the lifting block 203 to move upward or downward. The screw rod 202 is driven by the automatic adjustment structure 3 and moves the bracket 4 upward or downward. The height of the bracket 4 is adjusted according to the height of the patient's sitting chair. After adjustment, the shaft fixer 209 can be used to fix the rotating shaft 206. The lifting structure 2 is provided to solve the problem that the existing leg support device cannot adjust the height of the bracket 4 according to the height of the patient's sitting chair, and the height of the bracket 4 can be adjusted according to the height of the patient's sitting chair, so as to provide a better leg support effect for the patient.

[0031] When the patient's legs are placed on the bracket 4, the bracket 4 is subjected to the tilting force of the legs, and the bracket 4 drives the turntable 307 to rotate according to the tilting direction of the legs. The turntable 307 drives the torsion spring 306 to twist and deform, so that the turntable 307 rotates in the fixed cylinder 301, and the bracket 4 tilts to the left or right. When the bracket 4 loses the tilting force of the legs, the turntable 307 drives the bracket 4 to return to the horizontal 0 degree position under the action of the torsion spring 306 resetting. The automatic adjustment structure 3 is provided to solve the problem that the bracket 4 is fixedly installed on the supporting device and the angle of the bracket 4 cannot be adjusted according to the tilting angle of the patient's legs, so that the bracket 4 fits the patient's legs better and the support comfort is stronger.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A height-adjustable leg support device, comprising a base (1), characterized in that: A lifting structure (2) is installed on the end surface of the base (1) and at the rear side; The lifting structure (2) comprises a supporting shell (201), the bottom of the inner cavity of the supporting shell (201) is rotatably connected to a screw rod (202) through a connecting hole, the screw rod (202) is connected to a lifting block (203) through a thread, a polished rod (204) is arranged at the upper end of the lifting block (203), a driven bevel gear (205) is installed on the outer wall of the polished rod (204), and a rotating shaft (206) is rotatably connected to the left side wall of the supporting shell (201) through a connecting hole, and the rotating shaft (206) is connected to the left side wall of the supporting shell (201) through a connecting hole. A driving bevel gear (207) is arranged at the rear end of the shaft (206) and located inside the supporting shell (201); a fixed shaft (208) is installed on the left side wall of the supporting shell (201) and located on one side of the rotating shaft (206); a shaft fixer (209) is arranged at the other end of the fixed shaft (208) and corresponding to the rotating shaft (206); a handle (210) is arranged at the front end of the rotating shaft (206); and an automatic adjustment structure (3) is installed on the side wall of the lifting block (203); The automatic adjustment structure (3) comprises a fixed cylinder (301), the inner cavity back of the fixed cylinder (301) is provided with a mounting groove (302), the fixed cylinder (301) is rotatably connected to a limit plate (303) through the mounting groove (302), a connecting rod (304) is installed on the front side of the limit plate (303), the fixed cylinder (301) is provided with a limit ring (305) through the mounting groove (302) and located in front of the limit plate (303), the inner cavity back of the fixed cylinder (301) is connected to a torsion spring (306) through a connecting hole, a rotating disk (307) is arranged at the front end of the connecting rod (304), a bracket (4) is installed on the front side of the rotating disk (307), and a soft pad (5) is installed on the inner wall of the bracket (4).

2. A height-adjustable leg support device according to claim 1, characterized in that: The bottom of the supporting shell (201) is connected to the end surface of the base (1), and the inner cavity end surface of the supporting shell (201) is rotatably connected to the upper end of the polished rod (204) through a connecting hole.

3. The height-adjustable leg support device according to claim 1, characterized in that: The side wall of the lifting block (203) is fixedly connected to the rear end of the fixing cylinder (301), and the back of the rotating disk (307) is connected to the other end of the torsion spring (306) through a connecting hole.

4. The height-adjustable leg support device according to claim 1, characterized in that: The connecting rod (304) is located inside the torsion spring (306), and the sum of the thicknesses of the limiting plate (303) and the limiting ring (305) is equal to the depth of the installation groove (302).

5. The height-adjustable leg support device according to claim 1, characterized in that: Travel wheels (6) are installed at the bottom of the base (1) and at the corners, and the travel wheels (6) are lockable universal wheels.

6. The height-adjustable leg support device according to claim 1, characterized in that: The lifting block (203) and the inner cavity of the supporting shell (201) are matched with each other, and the inner wall of the fixing cylinder (301) and the outer wall of the rotating disk (307) are connected in a rotating manner.

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